Process of rendering bran digestible.



v UNITED S ATES PATENT OFFICE.

DITTMAR IiIN'KLER, OF BONN, GERMANY.

PROCESS OF RENDERING BRAIN DIGESTIBLE.

No Drawing.

To all whom it may concern:

Be it known that I, DITTMAR FINKLER, a subject of the King'of Prussia, residing at Bonn-on-the-Rhine, Germany, (whose post-.

and other seed and vegetable substances, and

has for its object to render said nutrients entirely digestible.

Hitherto it was not possible to make the nutrients of the bran of cereals and legumes 25% of the total flour is entirely removed.

substance of bran, that is the gluten cells,

are not in, themselves indigestible, but resistdigestiombecause the cell walls are not v attacked by the digesting fluid. Hence they hold the nutrients inclosed by them at adistarice from thedigestive action.

The present invention consists in a process by which the total nutrients of the bran or covering of fruits or cereals and legumes, or other vegetable matter are made susceptible of digestion by liberatingl ing or. opening the cell walls .in different ways pre aratory to or durin the act of grlnding or instance in the fol owing manner: I first separate the bran or other inclosure from the kernel of'the seed. The bran is then impregnated with a sodium Specification of Letters Patent.

Application filed June 22, 1906. Serial No. 322,928.

the nutrients Patented Apr-5, 1910.

chlorid solution, and disintegrated by bruising, grinding, or beating in such a way that the gluten cell walls burst open and are emptied of,their contents.

I have found that good results are obtained, if bran is mixed with a 10% solution of sodium chlorid-in water and left to stand for a time. Of course, a weaker solution than 10% may be used. The mixture is ground to a fine paste, until the cells are broken, the albumen liberated and the whole matter further and thorou hly ground. The ground material may be i urther washed if desired. Then the massmay be dried and if necessary ground again.- In this way'especially at low temperature, none of the nutrients is dissolved, or lost. The opening -of the bran cells may also be obtained preparatory to or while grinding, by appropriate lyes or solutions of other salts. or dilute acids, or several of those equivalents of salt, one of which is lime. The bursting open of the cells and the liberation of the cell-contents can be assisted by employin a correspondingly great temperature di erence, as by freezing and then grinding.

Flour obtained by my rocess possesses in a digestive condition al the nutritive -in gredlents necessary for sustaining animal life. Bran which heretofore was a comparatively valueless by-product, is rendered as valuable as ordinary good flour. When I mention bran in this specification and in the claims, I mean the bran of cereals or the correspondin covering of seeds and vegetable food su stances.

I claim as my invention:

:1. The process of increasing the digestibility of the bran of cereals' by comminuting it in the presence of a solution of sodium chlorid,.the comminuting process being continued until the cell walls of the bran are broken.

2. The process of increasing the digestibility of the bran of cereals bycomminuting it in the presence of a solution of sodium chlorid and lime, the comminuting process being continued until the cell walls of the bran are broken.

.In testimony that I claim the foregoing as my invention, I have signed my name in presence of'two subscribing witnesses.

' DITTMAR FINKLER 'Witnesseszy Bassrn F. DtmLAr, LOUIS .VANDORN. 

